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Air quality in Chelmsford
Air quality index (AQI) and PM2.5 air pollution in Chelmsford
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Chelmsford Air Quality Map
Real-time Chelmsford air pollution map
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Pollen
What is the pollen count in Chelmsford today?
 | Index | Very high | |
 | Tree pollen | Very high | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Chelmsford?
| Weather | Clear sky |
| Temperature | 66.2°F |
| Humidity | 54% |
| Wind | 5.7 mp/h |
| Pressure | 30.1 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Corpus Christi, Texas | 92 |
| 2 | Claremont, California | 87 |
| 3 | Glendora, California | 87 |
| 4 | Mecca, California | 87 |
| 5 | La Verne, California | 83 |
| 6 | Pasadena, California | 83 |
| 7 | Redlands, California | 83 |
| 8 | San Bernardino, California | 83 |
| 9 | San Fernando, California | 81 |
| 10 | Glendale, California | 80 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live Chelmsford aqi ranking
Real-time Chelmsford air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | North Chelmsford | 31 |
| 2 | Carlisle Street | 27 |
| 3 | Chelmsford Station | 27 |
(local time)
SEE WORLD AQI RANKING
US AQI
29
live AQI index
Good
Overview
What is the current air quality in Chelmsford?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 29 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 5.3µg/m³ | |
!
PM2.5
x1.1
PM2.5 concentration in Chelmsford is currently 1.1 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Chelmsford?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Chelmsford air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Wednesday, May 29 | Good 21 AQI US |  | 62.6° 50° |  6.7 mp/h |
| Thursday, May 30 | Good 26 AQI US |  | 73.4° 46.4° | 8.9 mp/h |
| Friday, May 31 | Good 30 AQI US | | 78.8° 51.8° | 6.7 mp/h |
| Today | Good 29 AQI US | | 78.8° 51.8° | 6.7 mp/h |
| Sunday, Jun 2 | Good 40 AQI US | | 82.4° 48.2° | 4.5 mp/h |
| Monday, Jun 3 | Moderate 56 AQI US  | | 69.8° 53.6° | 8.9 mp/h |
| Tuesday, Jun 4 | Good 49 AQI US | | 68° 50° | 8.9 mp/h |
| Wednesday, Jun 5 | Good 34 AQI US | | 75.2° 48.2° | 6.7 mp/h |
| Thursday, Jun 6 | Good 32 AQI US | | 77° 50° | 11.2 mp/h |
| Friday, Jun 7 | Good 21 AQI US | 100% | 68° 59° | 6.7 mp/h |
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News
The latest air quality news and resources.
How to best protect from air pollution?
Chelmsford air quality data attribution
Data validated and calibrated by IQAirWhere is the cleanest air quality in Chelmsford?
AQI US, Metric